package com.sxj.conmon.util.jdk8.stream;

import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

/**
 * @author Sun Xiaojie
 */
public class test {
//	public static void main(String[] args) {
//	List<Student> list =new ArrayList<>();
//	Student student1 = new Student();student1.setAge("12");student1.setSex(0);
//	Student student2 = new Student();student2.setAge("13");student2.setSex(2);
//	Student student3 = new Student();student3.setAge("11");student3.setSex(1);
//	Student student4 = new Student();student4.setAge("18");student4.setSex(1);
//	Student student5 = new Student();student5.setAge("18");student5.setSex(0);
//	Student student6 = new Student();student6.setAge("18");student6.setSex(2);
//	Student student7 = new Student();student7.setAge("18");student7.setSex(2);
//	list.add(student1);list.add(student2);list.add(student3);list.add(student4);
//	list.add(student5);list.add(student6);list.add(student7);
//	List<Demo> demos = new ArrayList<Demo>();
//    //原始数据
//	System.out.println("原始数据 组装list<demo>*******************");
//	demos = list.stream().map(student-> new Demo(student.getAge(),student.getSex())).collect(Collectors.toList());
//	demos.forEach(demo -> {
//	    System.out.println("年龄 "+demo.getAge() +"  性别 " +demo.getSex()+",");
//	});
//	//只取sex为0
//	System.out.println("只取sex为0****************");
//	List<Demo> demorm =demos.stream().filter(demo -> demo.getSex() == 0).distinct().collect(Collectors.toList());
//	demorm.forEach(demo -> {
//	    System.out.println("年龄 "+demo.getAge() +"  性别 " +demo.getSex()+",");
//	});
//	//筛选年龄大于12岁
//	System.out.println("筛选年龄大于12岁的*************");
//	List<Demo> demoFilter =  demos.stream().filter(demo -> Integer.valueOf(demo.getAge()) > 12).collect(Collectors.toList());
//	demoFilter.forEach(demo -> {
//	    System.out.println("年龄 "+demo.getAge() +"  性别 " +demo.getSex()+",");
//	});
//	//排序
//	System.out.println("排序******************");
//	List<Demo> demoSort = demos.stream().sorted((s1, s2) -> s1.getAge().compareTo(s2.getAge())).collect(Collectors.toList());
//	demoSort.forEach(demo -> {
//	    System.out.println("年龄 "+demo.getAge() +"  性别 " +demo.getSex()+",");
//	});
//	//倒序
//	System.out.println("倒序****************");
//	ArrayList<Demo> demoArray = (ArrayList<Demo>) demos;
//	Comparator<Demo> comparator = (h1, h2) -> h1.getAge().compareTo(h2.getAge());
//	demos.sort(comparator.reversed());
//	demos.forEach(demo -> {
//	    System.out.println("年龄 "+demo.getAge() +"  性别 " +demo.getSex()+",");
//	});
//	//多条件正序
//	System.out.println("多条件排序正序****************");
//	demoArray.sort(Comparator.comparing(Demo::getSex).thenComparing(Demo::getAge));
//	demoArray.forEach(demo -> {
//	    System.out.println("年龄 "+demo.getAge() +"  性别 " +demo.getSex()+",");
//	});
//	//多条件倒序
//	System.out.println("多条件排序倒序 sex  倒序****************");
//	demoArray.sort(Comparator.comparing(Demo::getSex).reversed().thenComparing(Demo::getAge));
//	demoArray.forEach(demo -> {
//	    System.out.println("年龄 "+demo.getAge() +"  性别 " +demo.getSex()+",");
//	});
//	//按照年龄分组
//	 System.out.println("根据age分组结果为Map****************");
//	Map<String, List<Demo>> demoOder = demos.stream().collect(Collectors.groupingBy(Demo::getAge));
//	System.out.println(demoOder);
//
//    }
}
